Drug Testing Locations - Rock Island, TX

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

40 Drug-Testing Centers in Rock Island

Minutes Away, Test Today

9409 Highway 6 Loop14.49 miles

9409 Highway 6 Loop
Navasota, TX 77868

210 S Judson St15.50 miles

210 S Judson St
Navasota, TX 77868

600 N Park St16.37 miles

600 N Park St
Brenham, TX 77833

700 Medical Pkwy16.42 miles

700 Medical Pkwy
Brenham, TX 77833

514 Hwy 290 W16.62 miles

514 Hwy 290 W
Brenham, TX 77833

235 W Palm St Ste 10517.20 miles

235 W Palm St Ste 105
Bellville, TX 77418

826 S Meyer17.61 miles

826 S Meyer
Sealy, TX 77474

15320 Highway 105 West Ste 12023.16 miles

15320 Highway 105 West Ste 120
Montgomery, TX 77356

34624 State Highway 24926.96 miles

34624 State Highway 249
Pinehurst, TX 77362

1036 N Circle St Ste 10127.73 miles

1036 N Circle St Ste 101
Sealy, TX 77474

25801 Highway 29027.86 miles

25801 Highway 290
Cypress, TX 77429

1036 N Circle Dr28.01 miles

1036 N Circle Dr
Sealy, TX 77474

14080 Fm 2920 Rd Ste A29.20 miles

14080 Fm 2920 Rd Ste A
Tomball, TX 77377

1280 N Fm 1486 Rd29.60 miles

1280 N Fm 1486 Rd
Montgomery, TX 77356

1604 Rock Prairie Rd29.81 miles

1604 Rock Prairie Rd
College Station, TX 77845

28465 State Highway 24929.82 miles

28465 State Highway 249
Tomball, TX 77375

1602 Rock Prairie Rd Ste 26029.88 miles

1602 Rock Prairie Rd Ste 260
College Station, TX 77845

13406 Medical Complex Dr Ste 1,30.59 miles

13406 Medical Complex Dr Ste 1,
Tomball, TX 77375

2011 S Texas Ave30.63 miles

2011 S Texas Ave
Bryan, TX 77802

506 Graham Suite 26030.74 miles

506 Graham Suite 260
Tomball, TX 77375

14044 Spring Cypress Rd31.47 miles

14044 Spring Cypress Rd
Cypress, TX 77429

9110 Barker Cypress Rd31.88 miles

9110 Barker Cypress Rd
Cypress, TX 77433

25765 Katy Fwy32.88 miles

25765 Katy Fwy
Katy, TX 77494

23900 Katy Fwy33.60 miles

23900 Katy Fwy
Katy, TX 77494

22475 Tomball Pkwy33.83 miles

22475 Tomball Pkwy
Houston, TX 77070

1600 University Dr E34.08 miles

1600 University Dr E
College Station, TX 77840

2104 Fm 2920 Rd34.29 miles

2104 Fm 2920 Rd
Spring, TX 77388

8100 Highway 6 N Ste E34.80 miles

8100 Highway 6 N Ste E
Houston, TX 77095

21929 Katy Fwy34.92 miles

21929 Katy Fwy
Katy, TX 77450

13141 Fm 1960 Rd W Ste 50035.24 miles

13141 Fm 1960 Rd W Ste 500
Houston, TX 77065

17738 Sunset River Ln35.40 miles

17738 Sunset River Ln
Houston, TX 77084

19728 Saums Rd Ste 17935.41 miles

19728 Saums Rd Ste 179
Houston, TX 77084

10850 Louetta Rd Ste 150035.47 miles

10850 Louetta Rd Ste 1500
Houston, TX 77070

1844 Snake River Rd Ste A35.55 miles

1844 Snake River Rd Ste A
Katy, TX 77449

21700 Kingsland Blvd35.60 miles

21700 Kingsland Blvd
Katy, TX 77450

21660 Kingsland Blvd35.63 miles

21660 Kingsland Blvd
Katy, TX 77450

21238 Kingsland Blvd35.83 miles

21238 Kingsland Blvd
Katy, TX 77450

10655 Steepletop Dr36.20 miles

10655 Steepletop Dr
Houston, TX 77065

1600 Joseph Dr36.22 miles

1600 Joseph Dr
Bryan, TX 77802

10705 Spring Green Blvd Ste 60036.25 miles

10705 Spring Green Blvd Ste 600
Katy, TX 77494

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing provides a full range of drug and alcohol screening services at 40 testing centers in the Rock Island, Texas area. We cater to individuals, employers, and legal requirements with our DOT and non-DOT urine tests, breath and EtG alcohol screenings, and hair drug examinations. Rapid results testing and SAMSA certified lab analysis are available, with most locations just minutes from your residence or workplace in Rock Island, TX. We also offer services like Occupational Health Testing, Clinical assessments, and Background Checks.

Dial (800) 221-4291 or sign up online. Choose your test and a convenient location—testing is available for yourself, for employees, or others. Scheduling is effortless, simply call our scheduling team or arrange your test online anytime. Our efficient and intuitive process helps you set up drug testing near Rock Island with ease.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

Rock Island, TX Drug Testing

Drug Testing Services Available at Our Rock Island, TX Labs:

At our Rock Island drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Drug Testing in Rock Island, TX

Rock Island, Texas Statistics

In Rock Island, Wharton County, the percentage of drug-related arrests rose by 15% over the past two years.

Rock Island, Wharton County has seen a 10% increase in opioid-related hospital admissions between 2018 and 2020.

In Wharton County, where Rock Island lies, over 20% of high school students reported using illicit drugs in the past month.

Drug overdose deaths in Rock Island, Wharton County, have doubled from 2015 to 2019.

Wharton County reported 30% of driving under the influence incidents were drug-related in the last year.

There were 50 rehab admissions related to substance abuse in Rock Island, Wharton County in 2019.

How does the body eliminate Drugs

Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.

Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.

A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.

Issues of Concern

Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.

Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.

Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.

Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.

Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.

The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.

Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.

Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.

Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.

Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears

Employers in Rock Island, TX & Drug Testing Policies

Employers in Rock Island, TX, are proactive in maintaining a drug-free workplace. Many companies in Wharton County implement rigorous drug testing policies, often aligning with guidelines from the U.S. Department of Labor. These tests are conducted during pre-employment screening and at random intervals.

The policies not only aim to ensure safety and productivity but also offer support mechanisms for employees struggling with substance abuse. Companies often partner with local health services to provide resources and counseling, encouraging employees to seek help without fear of discrimination or job loss.

Government Efforts with Drug Problems in Rock Island, TX

The government in Rock Island, TX, has undertaken several initiatives to combat drug abuse. The Wharton County Government collaborates with local law enforcement to organize community outreach programs. These aim to educate residents about the dangers of drug abuse.

Furthermore, the state of Texas supports these local efforts through grants and funding, enabling the establishment of rehabilitation centers. The Texas Department of State Health Services provides additional resources and conducts campaigns to raise awareness about drug addiction.

Local Drug Busts & News in Rock Island, TX

Rock Island, TX, has seen several drug-related events that underscore the ongoing battle against illicit substances. In late 2022, a significant drug bust led to the seizure of large quantities of methamphetamine and the arrest of several individuals suspected of trafficking. This operation was a coordinated effort between local law enforcement and federal agencies.

A community forum held in early 2023 also brought attention to the rise in prescription drug misuse among young adults in the region. These events highlight the need for continued vigilance and community engagement in addressing drug-related issues.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Rock Island, TX. Trusted by employers nationwide for accurate results and exceptional service.

Texas DOT/Non DOT Physicals

Texas Vision Tests

Texas Audiograms

Texas Respirator Fit Tests

Texas Lift Tests

Texas Background Checks

Resources & Citations

Wharton County Emergency Management

Austin Sober Living

Texas Department of State Health Services

SAMHSA

AA Intergroup in Texas

Nar-Anon Family Groups in Texas

Texas Health Behavioral Health

Grand Prairie Public Health

Houston Recovery Center

Rock Island Drug Testing

Quickly find trusted local drug testing centers in Rock Island, TX — fast, convenient, and reliable every time!

Rock Island DOT Drug Testing

Quickly find a local DOT drug testing center in Rock Island, TX — fast, reliable, convenient nationwide service!

Rock Island DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Rock Island, TX.

Rock Island Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Rock Island, TX.v

Rock Island Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Rock Island, TX locations—results you can trust, every time!

Rock Island Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Rock Island, TX.

Rock Island Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Rock Island, TX.

Rock Island 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Rock Island, TX employers and individuals nationwide.

Rock Island 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Rock Island, TX workplace and personal testing needs.

Rock Island On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Rock Island, TX workplace compliant.

Rock Island DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Rock Island, TX drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

Yes. Accredited Drug Testing maintains access to numerous collection sites nationwide, so in most cases a testing location is available close to a donor’s home, workplace, or job site. Same-day scheduling is often possible for both drug and alcohol testing needs.
Employers, DOT-regulated companies, attorneys, courts, probation departments, and private individuals all use Accredited Drug Testing locations. You do not need to be part of a large company to request testing — individuals can order testing directly.
Locations support urine drug tests, hair follicle drug tests, saliva/oral fluid drug tests, instant/rapid screening (where permitted), and evidential breath alcohol testing. Post-accident and reasonable suspicion testing are also available.
Yes. Accredited Drug Testing supports DOT-compliant urine drug testing and evidential breath alcohol testing following 49 CFR Part 40 requirements. This includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing for safety-sensitive employees.
In many cases, yes. Same-day or next-day appointments can typically be arranged. This is especially important for urgent needs such as post-accident, reasonable suspicion, court deadlines, or probation compliance.
Yes. Results are released only to the authorized recipient — for example, an employer’s designated representative, the court or probation contact, or the individual who ordered the test. Results are handled securely and are suitable for policy enforcement and legal documentation.
Yes. Accredited Drug Testing offers on-site and mobile collections for employers. Mobile testing is useful for post-accident response, reasonable suspicion situations, high-volume hiring events, and remote job sites where sending employees offsite would cause downtime.
No. You do not need a physician's prescription to request most drug or alcohol tests. Individuals, employers, attorneys, and probation officers can schedule testing directly and send the donor to the assigned collection site.

Customer Reviews

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024


(800) 221-4291